Friction and Wear Characteristics of 18Ni(300) Maraging Steel under High-Speed Dry Sliding Conditions

被引：19

作者：

Sun, Kun ^{[1
]}

Peng, Weixiang ^{[1
]}

Wei, Binghui ^{[1
]}

Yang, Longlong ^{[1
]}

Fang, Liang ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

来源：

MATERIALS | 2020年 / 13卷 / 07期

关键词：

18Ni(300) maraging steel; friction coefficient; oxides; wear mechanism; OXIDATIONAL WEAR; AUSTENITE; MECHANISM; BEHAVIOR;

D O I：

10.3390/ma13071485

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

18Ni(300) maraging steel, which has exceptional strength and toughness, is used in the field of aviation and aerospace. In this paper, using a high-speed tribo-tester, tribological behaviors of 18Ni(300) maraging steel were investigated under high-speed dry sliding conditions. Morphology of the worn surfaces and the debris was analyzed by scanning electron microscope, and the oxides of worn surfaces caused by friction heat were detected by X-ray diffraction. The experiment results reveal that the friction coefficient of frictional pairs declines with increasing load and speed. With the speed and load increasing, oxides of the worn surfaces of 18Ni(300) maraging steel change from FeO to Fe3O4 and the wear mechanism converts from adhesive wear into severe oxidative or extrusion wear.

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